Abstract |
The precursor of aqualysin I, an extracellular protease produced by Thermus aquaticus, consists of four domains: an N-terminal signal peptide, an N-terminal pro-sequence, the protease domain and a C-terminal pro-sequence. In an Escherichia coli expression system, mature and active aqualysin I is formed by treatment at 65 degrees C and the N-pro-sequence is required for its production. Complete deletion of the C-pro-sequence did not affect the production of active aqualysin I, indicating that the C-pro-sequence is not essential. A non-covalent N-pro-region was separately synthesized from the protease domain with or without the C-pro-sequence. In this system, mature and active aqualysin I was detected only when the C-pro-sequence was deleted.
|
Authors | Y C Lee, T Ohta, H Matsuzawa |
Journal | FEMS microbiology letters
(FEMS Microbiol Lett)
Vol. 71
Issue 1
Pg. 73-7
(Apr 01 1992)
ISSN: 0378-1097 [Print] England |
PMID | 1624114
(Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)
|
Chemical References |
- Recombinant Proteins
- Serine Endopeptidases
- aqualysin I
|
Topics |
- Base Sequence
- DNA Mutational Analysis
- Escherichia coli
(genetics)
- Molecular Sequence Data
- Recombinant Proteins
(biosynthesis)
- Serine Endopeptidases
(biosynthesis, genetics)
- Structure-Activity Relationship
- Thermus
(genetics)
|